CPU as potential bottleneck

[Wendulan]

Hi there

 

I'm planning on building a new rig with a i7 6700k and two GTX 1080s.

Now my question regarding the CPU:

I've recently watched a video where Linus explained how different processors support different amounts of PCIe lanes.

Worried that my i7 would bottleneck my Graphic Cards I had a look at Intels Ark website.

And indeed the i7 6700k only supports up to 16 PCIe lanes instead of the 32 I think I would need for two PCIe x16 Cards.

Now, did I misunderstand something? And if not is this a "big" bottleneck?

 

I thank you in advance for all your answers!

 

Signing off

Wendulan

[Guest Kloaked]

The video cards would run in x8 while in SLI. It's fine.

[Wendulan]

4 minutes ago, Kloaked said:

The video cards would run in x8 while in SLI. It's fine.

wouldn't that have some impact on performance?

[Glennieboyyy007]

and the chipset also has pcie lanes to add up to your cpu

[knightslugger]

6 minutes ago, Wendulan said:

wouldn't that have some impact on performance?

no. 8x is PLENTY for a super high end GPU.

 

and the chipset also has pcie lanes to add up to your cpu

right but they are behind DMI and are already used by other I/O.

[Guest Kloaked]

4 minutes ago, Wendulan said:

wouldn't that have some impact on performance?

It's extremely minimal. I think PugetSystems did either a video or article about it but I CBA to find it. The impact on your frame rate is literally so minute and inconsistent that it doesn't even matter.

[Wendulan]

1 minute ago, knightslugger said:

no. 8x is PLENTY for a super high end GPU.

Okay thank you very much!

[Wendulan]

2 minutes ago, Kloaked said:

It's extremely minimal. I think PugetSystems did either a video or article about it but I CBA to find it. The impact on your frame rate is literally so minute and inconsistent that it doesn't even matter.

Okay thank you